q6f10 - Version PREVIEW Quiz 6 JOHNSON (53140) This...

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Version PREVIEW – Quiz 6 – JOHNSON – (53140) 1 This print-out should have 6 questions. Multiple-choice questions may continue on the next column or page – fnd all choices beFore answering. LDE Thermodynamic Theory 010 001 10.0 points Which law oF thermodynamics governs the spontaneity oF reactions? 1. The 5 th Law 2. The 3 rd Law 3. The 0 th Law 4. The 1 st Law 5. The 2 nd Law correct Explanation: The second law oF thermodynamics states that the entropy oF the universe is always in- creasing. Consequently, only processes which increases the overall entropy oF the universe satisFy the second law and happen sponta- neously. LDE Gibbs Stability Ranking 001 002 10.0 points Consider the Formation reactions below and pick the most stable species From the answer choices. 2C graphite (s) + 3H 2 (g) C 2 H 6 (g) ΔG f = - 7 . 86 kcal · mol 1 3C graphite (s) + 4H 2 (g) C 3 H 8 (g) ΔG f = - 5 . 614 kcal · mol 1 8C graphite (s) + 9H 2 (g) C 8 H 18 (g) ΔG f = 4 . 14 kcal · mol 1
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q6f10 - Version PREVIEW Quiz 6 JOHNSON (53140) This...

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